Home / 2,212,612.80-3,319,972.20-792,812.40

Finding the Fourth Proportional to 2,212,612.80, 3,319,972.20 and 792,812.40

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Solution

The fourth proportional to 2,212,612.80, 3,319,972.20 and 792,812.40 is: 1,189,595.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212,612.80 : 3,319,972.20 = 792,812.40 : x
  2. Step 2: Convert to fraction form
    2,212,612.80/3,319,972.20 = 792,812.40/x
  3. Step 3: Cross multiply
    2,212,612.80x = 3,319,972.20 × 792,812.40
  4. Step 4: Simplify right side
    2,212,612.80x = 2,632,115,127,815.28
  5. Step 5: Solve for x
    x = 2,632,115,127,815.28/2,212,612.80
  6. Step 6: Final answer
    x = 1,189,595.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.